To make the molecules smaller, are added to the food.

common management practices in dairy and poultry farming are: (i) proper shelter facilities and their regular cleaning. (ii) some basic hygienic conditions such as clean water, nutritious food, etc. (iii) animals are kept in spacious, airy, and ventilated place.

since there are no options posted i'll give you a few examples.

a dolphin's flipper, bird's wing, cat's leg.